Quote from: BkkCoins on July 09, 2013, 11:57:54 AM

Quote from: kano on July 09, 2013, 11:42:10 AM

Quote from: BkkCoins on July 09, 2013, 11:23:56 AM

Quote from: kano on July 09, 2013, 10:33:00 AM

If you want the number of HW errors like you are counting, it is simply the device HW - NMW
Avalon device HW is bad nonces + NMW

No need to change anything.

What/where is NMW?

That's an Avalon added stat
(No Matching Work)
If your version of the code isn't adding HW but just calling submit_nonce() with each one, then the HW counter will just be the number of submitted that were no good (and Diff1 Work will be the number submitted - that includes HW)

Ok. I see. I only get NMW when it's hashing before any work is sent so I no longer have it send nonces when it's not in W (working) state. So when a flush occurs it changes to R (ready) state until new work is pushed. I was getting them at start up sometimes when an old workid matched in the queue it would trigger as a HW error, so better to not even receive useless nonces.

For klondike it doesn't send midstate back, only workid and each device in a chain has it's own sequence. I store (dev*256 + workid &0xFF) in the work->subid when sent and find it when a nonce comes back. I remove completed work when sending new work.

Quote from: fasmax on July 09, 2013, 11:45:15 AM

Quote from: BkkCoins on July 09, 2013, 11:35:25 AM

Just started running with 4 chips. 17 WU/m, 1200 GH/s.

Nice!
Are the 4 chips all on the same side or is it 2 and 2.

Right now just on one side, U5,6,7,8 at 300MHz. I have to relocate my NOR gate hack board before I can put chips on the other bank. U8 seems to run a bit hotter than the others at 52C. Others <50C. With steamboats black heat sink and a fan the heat sink runs 37C (on that corner, barely warm to touch) in 32 ambient.

How are you measuring temperature? I've noticed IR thermometers can often error on the low side (maybe 5-15 C below what they really are at).

Only being at ~50C for full speed (or slightly above fullspeed @ 300Mhz, i thought spec was 282Mhz for some reason) seems perhaps a bit cool

also i think the highest OC i've heard of was one of the 65GH/sec units stable @ 98 GH/sec which implies 150% OC or ~450 MHz clock. Interesting to note burnin hasn't had luck at that yet, but i don't think his design is released to take a look at it.